Yes.
No gasoline will melt regular white PVC pipe!
Schedule 40
1948
Raw materials for making pvc garden pipe
It's not used for making PVC resin, but it is used in processing it - they use it as a lubricant when making rigid PVC articles like pipe.
I was in the PVC pipe manufacturing business for over 30 years and have never heard of a "1K PVC" pipe. If "1K" means a 1,000 psi pipe, this does not exist as a commercial product. Sorry.
PVC pipes do not corrode, hence these are used for drinking water supply.
An instrument made of PVC pipe.
A pipe cutter is the best tool to cut PVC pipe.
Yes
No, it won't stick to most PVC. Oatey's Transition Cement and most epoxies will work IF the PVC is dry.